I don't usually go crazy about quotes, but I recently watched Randy Pausch's "Last Lecture", and I found some true gems to live by.
"The brick walls are not there to keep us out; the brick walls are there to give us a chance to show how badly we want something."
I think the...

"No one can make you feel inferior without your permission." --Eleanor Roosevelt
I think that works for more than just inferiority too. I apply the same concept to anger, jealousy, and embarrassment as well.

Faerie contains many things besides elves and fays, and besides dwarfs, witches, trolls, giants, or dragons: it holds the seas, the sun, the moon, the sky; and the earth, and all things that are in it: tree and bird, water and stone, wine and bread, and ourselves, mortal men...